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As if we don’t have enough things to worry about it would appear that the quagga mussel has arrived and is about to make its presence felt. I know what you’re all thinking; ….quagga mussel wtf is a quagga mussel???
The quagga – which is a native of eastern Europe – has been found in the Wraysbury river near Heathrow airport. Over the last few decades it has invaded rivers and lakes across Europe and has now got a foothold in the US. Whilst it is not known exactly how it got into our native river system it doesn’t take a huge leap of imagination to suspect that it arrived on or in some air freight delivery at Heathrow?
Some of you may have heard of the zebra mussel which has clogged up the Great Lakes in the US – however the less well known quagga mussel is actually even more invasive and aggressive – so much so that it has been found to displace the zebra mussel from their Great Lakes stronghold.
The quagga literally suffocate other mussel species by sitting on their shells and pushing them into underlying silt. Whilst only being relatively small at 5cm long or less, they breed incredibly fast and can rapidly block pipes and water inlets, potentially costing the water industry huge amounts of money in management strategies involving having to physically dislodge them.
The quagga mussels waste provides nutrients for its associated other invasive organisms from its native lakes and rivers of Eastern Europe. The infamous killer shrimp co-evolved with the quagga and frequently invade with them. Killer shrimp kill and eat most native shrimp wherever they invade and the native UK mussel species Pseudanodanta complinata could also be at risk from the quagga’s aggressive behaviour.
In what may seem like a benefit – the quagga filters and cleans water allowing light to penetrate the riverbed – unfortunately this allows problem weeds to flourish in areas where previously they could not establish …thus upsetting established ecosystems.
Scientists at the University of Cambridge led by David Aldridge say there is no way to completely eradicate the quagga mussel once they have established themselves in a river or reservoir – but there is a method of keeping them in check.
A poison has been developed which is applied via a capsule made from the same material that the mussel eats. Once the mussel has digested the capsule the outer layers dissolve releasing a salt that kills the creature. The ‘bio-bullet’ is harmless to other aquatic life and is rejected by the more discerning native mussel species.
Google it, get to know what it looks like…and add it to your list of problem species. Perhaps add it to your list of invasive non-native food stuffs? Maybe if we all ate Killer shrimp, American signal crayfish and quagga mussels there would be fewer of these invasive species around?
Maybe if we get Jamie Oliver to do a one off ‘special’ on TV ….?
Mike C
Insurance – requirement or rip off…? April 24, 2015There are numerous ‘key’ areas within the Japanese Knotweed ‘industry’ that everyone gets worked up about. Insurance is a real bone of contention amongst our competitors with many extravagant claims made on various websites as to the quality and length of the policies provided.
Bonded Insurance Policies:
Japanese Knotweed Solutions ltd were THE FIRST company to offer a TEN YEAR INSURANCE BACKED PRODUCT in the field of Japanese Knotweed eradication. Others have followed suit copied the style and cover of the insurance that we first provided. These policies are ‘bonded’ which means that they are covered by a lump of money put to one side to cover the recipient in the case that a claim is required. The length of cover varies but is generally offered as a ten year ‘insurance backed warranty’. Any company offering an ‘in house’ warranty is basically giving you ‘cover’ but with no financial bond provided – this means that if they cease trading – you have no come back or cover provided. Companies offering ‘free’ insurance backed policies are usually lying – ask to see the specific policy documents before you sign anything!
Japanese Knotweed Solutions also allow within the figures that they quote for a series of return visits to site. When using Glyphosate based chemicals, a number of repeat visits are scheduled in – this allows for re-spray of herbicide and provision of a report highlighting any issues/problems and any recommended works required.
Professional Indemnity Cover – or ‘PI’:
Professional indemnity insurance covers for ‘professional advice’ given by a consultant. The level of cover provided can be quoted for on various levels – 1 million/3million/5 million/10 million – each will cost a set fee for a twelve month policy period.
Professional indemnity Policies will not cover a contractor’s work if it is carried out badly – if for example there was re-growth of Japanese Knotweed within hard surfaces a successful claim would have to ‘prove’ that the professional advice given was ‘negligent’.
Many companies offering Japanese Knotweed eradication services make the statement – ‘hard surfaces fully insured for five million pounds’ – this statement refers to Professional Indemnity cover and will NOT ever be subject to a successful claim.
Another major flaw in the Professional Indemnity policy is that cover will only be provided whilst the premium is being paid. Once the premium instalments are unpaid – the policy will cease.
Insurance backed Policies:
Several companies are offering policies which purport to give London based policy cover in event of ceasing to trade. Whilst this may be deemed a responsible stance and the name quoted as ‘Lloyds of London’ may sound impressive it should be noted that this cover would only provide cover in the case of the company no longer being in existence….
Summary:
In summary I find myself thinking that in most of these cases the chances of getting a policy to actually pay out are incredibly slim.
‘Insurance this’… and ‘insurance that’…. may sound great but really what you want is a reputable company that has a good trading history –
Yes it’s good to have an insurance backed product …but …maybe it’s better to use a company in the first place that won’t require an insurance claim being made?
Mike C
10,000 ….and counting April 24, 2015…actually its now …10,118 enquiries logged on to our CRM job management system …(yes that’s ten thousand one hundred and eighteen –as of 4.45 pm Thursday 10th July)). Quite an impressive figure when you consider that this just covers the last three years – all enquiries before that time were managed on a manual system using an Excel spread sheet.
We average between 50 and 100 enquiries a week which vary from small private gardens to major road schemes and new housing developments throughout the UK. It’s often difficult to cope – but experience and technology help separate the ‘wheat from the chaff’ or the good enquiries from the ones that will never go anywhere.
Mrs Smith from 14 Acacia Avenue who has a ‘funny looking plant’ which grew ‘from my compost’ gets a call back …but on a pretty low priority. Developer ‘A’ who has a multi-million pound scheme starting on Monday and has just realised he has Japanese Knotweed – gets a call back by return.
We can give each enquiry a code and a unique reference number and each job has a timescale in which they must be responded to. We classify projects by scale and by the requirement for action on site – tenders for projects that are not yet won get classed as a lower priority than tenders for a winning contractor who is desperate to get on site. The CRM system that we have then reminds the surveyors as to what they have to do by set dates and sends a low electrical shock* into their private parts when they don’t perform on time ( *joking….it’s actually quite a high level of shock).
I continue to be amazed at the number of enquiries that we get, and continue to be horrified by the amount of money we spend on Google. We often spend over £1000 a week on our Pay Per Click (PPC) campaign …which with a simple bit of maths is over £52K a year (yes fifty two thousand pounds…) – just to get in the top ranking cluster of names at the top of the ‘sponsored links’ on the search engine website.
Even with that level of expenditure – Japanese Knotweed Solutions are still not the ‘number one’ in the rankings as some of our competitors are either spending much more ‘per click’ on their advertising…. or perhaps…. just more canny with Google ‘Adwords’?
So whilst I imagined when initially setting up Japanese Knotweed Solutions – that the company would have a short lifespan and that everyone would quickly understand the issues surrounding Invasive Non-Native Species – here we are 15 years later and thousands of enquiries still coming in…!
We have diversified a little from our original ‘single target species’ approach and can now be found working with Himalayan balsam and Giant Hogweed as well as looking at Ragwort and Rhododendron infestations throughout the UK.
We also continue to monitor ‘other’ species which may become problematic in the future and advise our clients on changes in legislation and the potential cost implications of these plants. All of which should hopefully keep us busy for the foreseeable future…and maybe take that total at the top of the page to 100,000 +
Mike C
There are some things that I have learned in life and in business that I feel duty bound to pass on. As one reaches the ripe old age of 53 the only hair that rapidly grows is either in your nose, on your back or in your ears…fact.
I have also learnt that the big invoice you need paying will never arrive before Christmas….
Santa’s little helpers may be incredibly busy over the festive season but I can guarantee that they aren’t busy sorting your cheque out!
We have a saying here at Japanese Knotweed Solutions that goes along the lines of …’any payment that you are expecting in December – move it on the cash flow to January’.
I vividly remember my first experience of this sum 20 odd years ago when we were due a payment of £128,000.00 from B***e on the 12th of December – and had thus made commitments to pay suppliers before the Christmas break. The quantity surveyor said … ‘you will definitely be paid on the 12th and will receive your cheque by the 16th ‘ ….of course we weren’t paid on the 12th but left it till the 16th to chase – when we rang the number an automated message stated that the offices were closed for the Christmas break and would not re-open till 14th January…
On the 28th of December my company was served a winding up notice by one of my suppliers who didn’t believe that we hadn’t been paid – and I spent the whole of the Christmas break talking to solicitors and bank managers ….whilst still trying to put a smile on my face for my wife and kids.
It turned out that the ‘winding up notice’ wasn’t real – it was a photocopy pasted together to look real (…it looked real enough to me).
B***e eventually came back to work and we ended up being paid on the 1st of February – after legal threats, arguments, and more winding up notices being bandied about …..
Something similar to this has pretty much happened every year since – mainly smaller amounts but in some cases bigger amounts – which has lead me to believe that Christmas (from a business point of view)…sucks…big time.
You are stuck with the construction industry being closed for a month, no work getting done and no money coming in.
Your team who have worked hard all year are looking at you for a Christmas bonus and all you want to do is hide in a cave till the new year…
Maybe bears have the right idea? ……
Happy Christmas one and all.
Me, me, me April 24, 2015Sometimes I look at the ‘knotweed control industry’ and feel a little burst of pride. I look at other people’s websites and think what inspired them to use that turn of phrase? Who inspired them to come into the industry? Who was it that realised that there was a business idea in the management and eradication of invasive species… and I end up thinking…it was probably me.
Now I may be blowing my own trumpet here but…i think maybe I started an industry?
I’m going back 15/20 years or so here…there were ‘others’ around at the time that I set up Japanese Knotweed Solutions but they didn’t exclusively deal with Japanese Knotweed. My competitors were mainly grounds maintenance companies who cut grass and did a bit of weed control…and said they ‘knew’ about Japanese Knotweed.
Now I’m not saying that I was the first person to recognise the problems associated with this most troublesome of invasive species – what I am saying is that I believe I was the first person to recognise the ‘commercial’ implications of dealing with the plant.
There was a ‘code of practice’ being produced by the Environment Agency and there were one or two rather odd looking, bearded, long haired oddballs who were the ‘go to’ experts (nb:…any of whom could have made a fortune if they had any commercial sense!).
But…NOBODY…was offering commercial solutions to the issues raised by the Code of Practice – nobody was taking on board the financial implications of having a plant that had so many problems to tackle.
This is where I recognised an opportunity – not that clever – but as I have repeatedly said to my critics…nothing was stopping others from doing the same thing.
Let’s be honest here, others have followed but basically they have all copied what we at Japanese Knotweed Solutions Ltd (ME) have done…you can call yourself whatever variation of the term Japanese Knotweed (insert name) that you like but really your just a pale imitation of the real thing…JAPANESE KNOTWEED SOLUTIONS LTD …the ORIGINAL Japanese Knotweed company.
…or just me, me, me…
Mike C (ME)
Invasive species – an alternate view… April 24, 2015There’s a battle being fought on our very doorsteps for the countryside that we take for granted…. but is it a war that we cannot ever win? Should we even be bothering to fight this onslaught of non-native invaders?….or should we just give up…rollover bury our heads in the duvet and pretend nothing is happening???
At a recent meeting at the Royal Society of Edinburgh Professor Chris Thomas stated that we are living in ‘an alien present’, suggesting that biodiversity isnot static. He stated that species move – bear in mind that ALL humans are from Africa. Obviously human population has increased exponentially over the last few decades – with the associated massive increase in use of available resources which has led to a loss in global diversity. His argument was that there is ‘nothing on the planet unaffected by humans and so there is little which can be truly be regarded as natural’.
The distribution of species has always been subject to change across the planet – many of the species that we regard as ‘native’ in Britain are not actually natural – but are there due to introduction by man. I myself was until recently under the impression that rabbits were a native of the British Isles – wrong – Romans introduced rabbits as a food source. Thus much of what we try and preserve is actually a remnant of a past agricultural practice that is no longer economic.
According to Professor Thomas there is nowhere left in a ‘pre-human’ state; we are in the Anthropocene.
Really as plants and animals move around the globe we shouldn’t really be thinking of ‘native’ or ‘non-native’ – we should just think of them as ‘species’. Perhaps we are a little too particular about these issues because we have named where we live – Britain/France/Germany/Africa – if we didn’t have these names and just ‘lived’ rather than living somewhere specific (with a title) then perhaps we wouldn’t have ‘invasive non-native’ species?
I am probably a ‘conservationist’ in my attitudes toward plant and animal invasions. I like to see what I consider ‘natural’ to remain unchanged and undamaged. Huge swathes of Japanese Knotweed and Himalayan balsam have taken over areas where I used to walk and fish as a child and it causes me great upset when I see native woodland lost under sycamore and invasive rhododendron – however – on a countrywide level Professor Thomas states that ‘no plant species have gone extinct due to new arrivals; indeed there has been a net gain in regional biodiversity, both at home and across much of the planet’.
I suppose that trying to decide what ‘belongs’ where on the basis of historical distribution doesn’t make any sense – climate change continues to transform habitats and change a particular species ability to survive within the region.
Professor Thomas summarised his thoughts by saying … ‘we cannot in the modern world, police the distribution of species – it makes no biological senses and it would be a waste of money’ he went on to say ‘from a conservation perspective it is essential to decide which are the really important fights and put the priority there’.
On a local level Japanese Knotweed, Giant Hogweed and Himalayan balsam infestations can be managed and eventually eradicated. With regards some of the newer invasive species perhaps a more tolerant attitude could be adopted…?
My problem with this approach is that it often takes years for an invasive species to be recognised as problematic – and by this time they are almost impossible to eradicate. There can be a huge time lag between the arrival of a species and the recognition of the problem – for example Himalayan balsam first arrived in 1855 and yet it took till 2006 for the first paper to come out highlighting a negative impact.
Perhaps Horizon scanning is something we should be looking at? Let’s be alert to potential threats and respond more rapidly to them bearing in mind that once a species is established it is usually too late or too costly to remove it.
Mike C
With recognition of The Royal Society of Edinburgh/Professor Chris D Thomas of the University of York and Dr Niall Moore Head of the Non-native Species Secretaria
Nice pair April 24, 2015I’m always interested in invasive species stories – where did they came from?…. how did they get to where they are?…. were they planted on purpose or was it an accidental introduction? ….I love it….
This I think stems back to walking around the UK with my dad and him telling me tales of Rosebay willow herb (Chamerion angustifolium) being spread by the steam trains (he was a railway enthusiast) – the trains set fire to track side vegetation and the willow herb thrived in the bare ground. The seeds were blown along by the passing trains and an invasion began that spread throughout the UK. The bombing during the war also created patches of burnt ground and again the Rosebay thrived – it had a nickname of ‘fireweed’ due to its propensity for growing in these fire damaged areas.
Japanese knotweed was originally introduced through the Royal Horticultural Society in Kew – where due to its ease of growth and its tolerance of a variety of conditions it was given a Gold Medal and made plant of the year! How things have changed…..now even the mention of having this plant in your garden can send shivers of fear through the property owner!
Giant hogweed was loved by the Victorians for its grand foliage and wonderful flowers – yet every year it causes injury to hundreds of unknowing children and adults who get burned by its toxic sap. People still buy and plant Giant hogweed and still just don’t understand the dangers that it presents
I’ve just been reading about an invasive ‘pair’ – OK an invasive pear – actually the pear I’m talking about isn’t that ‘nice’ a pear and is actually very prickly…’Opuntia monocatha’ to be exact – or the ‘common prickly pear’. This must be one of the earliest plant invasions (I could be wrong) it was present in India in 1795 then introduced to Sri-Lanka in 1850 (Beeson 1934) – then introduced to Australia and South Africa in the 1800’s and was probably present in many other countries by 1900. In Australia as an example, it was estimated that by 1920 almost 10 million hectares in eastern Australia were infested with various Opuntia species – equivalent to one third more than the total cultivated area of the whole country at that time!
With the ‘prickly pear’ there will always be a risk of it being introduced as an ornamental or hedging plant, perhaps via the international nursery trade in succulents? Japanese knotweed has been used to stabilise embankments and as an animal fodder. Giant hogweed is still valued as an ornamental and often used as a focal point in gardens by people ignorant of its dangers and oblivious to its multiple seed production and ease of spread.
The key to answering the issues associated with invasive species management must lie in education. Whilst legislative powers will raise the profile of these problem plants – I’m sure that if gardeners understood the dangers of planting these species – they would be more open to using alternate varieties.
With the correct education maybe the initial impact of a ‘nice pair’ could be put to one side… and a more suitable ‘pear’ would be preferred.
Mike C
It has been said that ‘…consultants know a little about many different things, but don’t know a lot about anything ‘….Over the last few years I have been asked to give presentations at several consultants who have been interested to learn about the problems associated with Japanese Knotweed. They have listened and learned – and on more than one occasion asked for a site based follow up to ensure that their powers on identification are ‘up to speed’.
What then amazes me is that within a fairly short period of time after just being introduced to Japanese Knotweed – these companies then set up as…. ‘Consultants name JK’… and call themselves the UK experts in Japanese Knotweed….
I don’t get paid for these presentations and I’ve often been asked to pay for lunch for all the attendees. It takes some gall to ask somebody to help you, expect them to do it FOC, and pay for lunch…then you basically screw them over and nick their ideas.
I’ve even had somebody film my presentation – then repeat it… word for word, joke for joke…then appear on the BBC as the UK expert on a plant…. when six weeks previously… he had no idea even what it even looked like. I would have loved to know he was on the radio and been able to ask him a few questions about other invasive species or even other varieties of Japanese Knotweed …he would have been clueless (…and he still is)
One of our surveyors has just returned from a site in London where he met a lady consultant from A****s who was carrying out some ground investigation works. Our surveyor pointed out the areas of Japanese Knotweed on site….and was told… ‘that’s NOT Japanese Knotweed it’s Himalayan balsam’ …errr duuuh this is what we do for a living…what sort of person would:
1. Make such a schoolboy error
2. Not be savvy enough to check their facts before making such an error
3. Not be big enough to admit they were wrong
4. Not realise the potential cost implication of such a cock up
A piece of advice that my Dad once gave me … ‘if you don’t know what you’re talking about – keep your mouth shut’….pity this lady consultant didn’t follow this simple procedure.
My back ground is that I trained as a Landscape Architect – I say ‘trained’- it was more of a drug fuelled alcohol fest with the occasional life study class thrown in…but three years later I walked away with a degree. I managed to go all the way through the Leeds course with a very limited knowledge of plants and some very basic drawing skills – yet I came away with a degree. Being a little disappointed in the Leeds course I then decided to do a Post Grad at Birmingham on a course famed for its detailed approach to Landscape studies, Birmingham was very similar but required more plant knowledge and some serious studying.
Both of the courses that I did- seemed to relish bullshit. If you could talk a load of twaddle about design principles and had a bit of plant knowledge – then you could be a Landscape Architect.
Nearly every Landscape Architect I have come across falls into the category ‘knows a little’ …yet each and every one of them seems to think they are God’s gift to knowledge…and are the font of all wisdom. I was on site a couple of weeks ago and had the pleasure of a ‘Landscape Architect’ trying to tell ME about Japanese Knotweed…FFS
We recently saw a copy of an ecologists report submitted for a client of ours – this had several pages on bats, two pages on badgers, three pages on Greater Crested Newts….then in the final paragraph a note that … ‘ we have also noted Japanese Knotweed on site’.
The potential cost implication of the ‘noted Japanese Knotweed’ was £2.4 million pounds
And don’t even start me on Planners….
We currently have a site which has a planning condition relating to Japanese Knotweed – the client wants the work done, the planners have indicated they want the work done, we have an instruction from the client to do the work….yet nobody within the planning department seems able to actually go into print to say … ‘yes please proceed’…so we all just sit around with our thumbs up our arses whilst the Japanese Knotweed on site just laughs at us….. and carries on growing….
Neighbour walls, TPO conditions, access roads, rights of way, public access, newts, water voles, lizards …the list is endless and they all stop us carrying out herbicidal spraying and excavation works to remove invasive species…
Whilst the consultants are arguing these invasive non-native species are setting seed and boosting their underground storage organs for over winter…
So maybe in 2015 the stance should be – ‘less talk more action’ – or maybe… ‘shoot first, ask questions later’…?
These invasive plants rely on our inactivity and our inability to act quickly and decisively – maybe it’s time for a change?
Mike C
Gardeners… check first, plant later….? April 24, 2015I’ve read a few articles over the last few weeks highlighting interesting gardens around the United Kingdom. I’ve seen, herbaceous borders, gardens by Chelsea Garden show winners all with weird and wonderful plants…and every time I’ve thought hmmm I wonder whether this could be the next ‘invasive non-native species’…?
I’m sure I’m probably the only person that does this – whilst others simply go on line and buy whatever the magazines or TV shows advertise.
If someone said Thunbergia alata (or even… Black Eyed Susan) would you immediately think ‘..NO…BAD…INVASIVE …’…..or would you think ‘hmmm nice herbaceous vine might be nice on my shed?’
Indigo hirsute, Urochloa mutica, Allamanda cathartica, Emilia fosbergii …not really names that would send up warning signals yet these have all been introduced either as fodder plants, crops or ornamentals…and now pose a huge problem in the areas that they have been introduced.
They are capable of smothering native vegetation, killing host trees, out competing with understory plants and negatively affecting the germination of native plants.
These plants also have amazing abilities to spread and reproduce as well as having allelopathic* tendencies – (*they produce chemicals within the soil which precludes the growth of other species). These plants will grow in a wide variety of soil conditions and in most cases will reproduce and grow far quicker than native species.
So when I see a feature in the Sunday Times about a gardener who loves ‘tropical plants’ and has covered his back garden with a variety of unusual trees and shrubs which he has imported from God knows where….I always end up wondering?
Have these plants been vetted for disease?
Where exactly have they come from?
Has someone given a license for their import?
Have they been smuggled in from holiday – wrapped up in a suitcase?
How does the ‘gardener’ prevent seed from leaving his garden?
What happens if he moves?
What about root spread?
Is anybody checking on what this gardener is doing?
Now don’t get me wrong – an Englishmans home/garden is his castle…and I for one would not take kindly to some council ‘busybody’ telling what I can or cannot plant in my piece of land…
…yet… a part of me thinks that just maybe somebody ….should be able to do something…?
Before anybody shouts about current legislation and new laws that are coming in to manage and control Invasive Non-Native Species ….yes …I am aware….BUT …..will anybody actually DO ANYTHING?
I think it’s down to each of us to have a careful think about what we plant in our gardens.
Personally I won’t plant anything that hasn’t been grown in my local nursery, I use native plants and also try and match the age and history of the property – very much a cottage/kitchen garden. This rules out any weird and wonderful modern flowering shrubs and keeps a very herbaceous seasonal colour pattern within the borders.
All I’m asking really is for people to have a think before doing weird and exotic planting scheme’s – think about the future, think about how these plants could impact on our British Countryside….and then maybe we won’t get any unexpected invasions….
Mike C
Global resignation April 24, 2015I’ve been reading a lot recently about global warming and climate change and wondering whether the work that I do is just a waste of time. Should we- as David Attenborough suggests, accept that … ‘climate change is happening’ and ‘embrace’ these changes?
Attenborough states that ‘British wildlife is in grave peril of disappearing, 50% of the hedgehog population has gone in 25 years, 90% of the wildlife meadows have disappeared in the last 100 years; 60% of all wildlife is diminishing – with 10% doomed to disappear in the next 10 decades….nowhere in Britain is unsullied.’
Rather than lament these changes he suggest that we accept that new animals and plants are moving North. He suggests that we give thought to wildlife corridors allowing free movement of plants and animals along chosen routes Northward. He also wants us to think that every new arrival should be looked at for their merits rather than have to be repelled.
Well….hmmm…
If an invasive non-native species was gradually making its way Northward due to a changing climate and an increased ability to survive in different regions perhaps this argument could be justified. Maybe a snail or some sort of butterfly accidentally take a trip to Scotland and thinks … ‘you know what …I could live here’…
What is far more likely however is that the snail and the butterfly are taken Northward by some sort of human interaction either accidentally or on purpose – then released – again either accidentally or on purpose….and an invasion begins.
Surely if we accepted every invading species that arrived on our shores – and had an open door policy – then much of our native flora and fauna would just disappear under a deluge of imported aliens….? New species introduced in an area where they do not have inherent predators or diseases immediately have an advantage over the indigenous population…
…surely a little fighting back should be in order?
Many of our problem invasive non-native species were introduced by the Victorians who were ignorant of the problems these plants were going to cause. Japanese Knotweed, Himalayan balsam, Giant Hogweed to name but a few – were all planted as ornamental species and revered amongst the gardeners of the time as being ‘new and exotic’.
Garden centres of the time sold these species – then the new owners gave samples of these plants to friends and neighbours – these weren’t ‘natural’ invasions of species but rather a more commercial enterprise centred on making profit from a ‘new’ product line. Japanese Knotweed was described in the plant catalogues as a… ‘miraculous plant’ which would grow in ‘every possible climate type’…and was ‘good for your health’ when eaten!
So whilst I accept the points made by Mr Attenborough I think some caution needs to be exercised with how we define an ‘invading’ species. Let’s focus on what are problematic and destructive to our current ecosystems and environment and maybe allow the odd butterfly to float past our windows without shooting them out of the sky??
Mike C
Native Ninja April 24, 2015Driving along today I kept spotting invasive non-native plants, pretty much everywhere I looked there was Himalayan balsam, Japanese Knotweed, Giant hogweed, Rosebay willow herb and new on the block Golden Rod.
Looking at these plants and thinking about how they get established set me to thinking…maybe we need a ‘superhero’ …someone who can tackle these invaders….someone bold enough and strong enough to stand up to these bullies…?
We need ‘NATIVE NINJAS’…
…and we don’t need just one, we need thousands all over the country.
So …to get your ‘NATIVE NINJA’ pack – please write a short description of why you should be considered for the ‘free – Native Ninja’ kit*.
NB * Kit consists of:
• One pair black tights
• One black balaclava
• One pair black wrap-around sunglasses
• One black ‘Native Ninja’ T Shirt (sizes XXL upward)
• One samurai sword (v. sharp)
• One pair ‘crocs’ (black)
On spotting an Invasive Non-Native Species – the ‘Native Ninja’ will be expected to change quickly into one’s outfit (…a phone box or similar will do) then one should leap out whilst striking quickly with the Samurai sword at the base of the offending plant whilst shouting ….’BANZAI’….once the main stem has been severed the ‘Native Ninja’ should then carry on chopping and chopping until any remaining vegetation has been reduced to a fine mulch…
At this point (if you haven’t been arrested) one should run quickly from the scene shouting loudly REDRUM,REDRUM,REDRUM….
When questioned (…as you will be) please never mention my name or where you got your ‘Native Ninja’ kit from…
First rule.
You do not talk about Fight Club…..sorry I mean …You do not talk about Native Ninjas…
Mike C *
*Note from Suzanne : the hot weather and the current abundance of non-native plants has pushed Mike over the edge – he has been asked to have a holiday.
It’s been having SEX! April 24, 2015Having been faithful to its self for years (ie reproducing asexually through fragments and propagules) Japanese Knotweed has been out on the town and fooling around without any form of protection – resulting in… fertile seeds!
CABI (www.cabi.org) hypothesised that climate change and global warming could result in plant species shifting their distribution northward? They expected that phenological changes could be the first signs of populations located near their distribution limit – (meaning that the earlier flowering of a species would indicate its adaptation to the climate and its ability to then progress Northwards).
Testing has been carried out by CABI in Canada of Japanese Knotweed (Fallopia japonica) and its hybrid Bohemian knotweed (F x bohemica) of the theory that climate warming could allow the production of viable seeds in the most northerly of its populations. Seeds were collected along a 550km transect in Quebec and tested for germination.
The results showed that Japanese Knotweed has a large number of seeds with a very high germination rate (93%).
The geographical limit for viable seed production in North America has thus been extended to Quebec City some 500km North of the formerly reported limit! The Bohemican Knotweeds are genetically diverse whereas the true Japanese Knotweeds all share the same genotype – this suggests that the Bohemian knotweeds mostly arose from seed while the ‘true’ knotweeds result only from propagation of rhizome or stem fragments.
The conclusion was that the effects of climate change are already palpable on the phenology of invasive plant species at their Northern distribution limit. Bohemian knotweed – which was until recently rare in Quebec, could rapidly spread in the near future with the help of viable seeds being regularly produced.
With the impact of invasive species now being recognised more in the UK one is left wondering whether the next major change will be the production of viable seed within the UK populations of Fallopia bohemica?
This would be a major game changer within the management and control industry and require a complete overhaul of standard eradication techniques and warranty packages.
Mike C
with thanks to CABI
